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US 4,052,785 AGranted
Method of making a transformer assembly
AssigneeDana Corporation
InventorJohn D. Duncan
Life of this patent
Estimating the term…
Abstract
Disclosed is a double balanced mixer using a novel single ferrite core construction. The core includes two apertures and a transformer is wound through each aperture. The two transformers are connected by diodes in the known manner to provide the mixer. The arrangement lends itself to simple construction and provides a mixer which is smaller than heretofore possible and which exhibits exceptional high frequency response and flatness with satisfactory isolation.
Claims3
A method of forming a transformer assembly comprising:
- providing a single core of magnetic material, said core defining two apertures therethrough, said apertures being symmetrically located with respect to each other and with respect to said core;
- winding a coded three wire cable through each of said apertures providing two ends of said cable corresponding to each aperture;
- and interconnecting one wire from one end of each cable with a different wire from the other end of the same cable such that diagonally corresponding ones of the wires are interconnected whereby the transformer is symmetrical.
Dependencies are inferred from the claim text.